Stopping it? Saw one groundie climb the right-side cabin step toward the roof and grab the blade near the root - obviously wasn't going to have much mechanical advantage there - he got dragged across the roof and let go just before the head-first drop on the other side.

Also watched a tall junior Bog-rat grab a blade about two turns too soon, and perform a cartwheel in mid-air to land in a heap in the South Australian dust. Have never laughed so hard that it hurt.